title: Homochiral supramolecular M2L4 cages by high-fidelity self-sorting of chiral ligands.
abstract: A 1,1'-binaphthyl-based bis(pyridine) ligand (1) was prepared in racemic and enantiomerically pure form to study the formation of [Pd2(1)4] complexes upon coordination to palladium(II) ions with regard to the degree of chiral self-sorting. The self-assembly process proceeds in a highly selective narcissistic self-recognition manner to give only homochiral supramolecular M2 L4 cages, which were characterized by ESI-MS, NMR, and electronic circular dichroism (ECD) spectroscopy, as well as by single-crystal XRD analysis.
authors.affiliation: Kekulé-Institut für Organischen Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Gütz
authors.forename: Rainer
authors.initials: R
authors.lastname: Hovorka
authors.forename: Gregor
authors.initials: G
authors.lastname: Schnakenburg
authors.forename: Arne
authors.initials: A
authors.lastname: Lützen
keywords: BINOL; palladium; self-assembly; self-sorting; supramolecular chemistry